Vinyl siding costs $4–$8/SF installed; fiber-cement costs $8–$14/SF; wood siding $9–$16/SF. Old siding removal, sheathing repair, and trim replacement are frequently excluded from initial per-SF quotes, confirm what's included before comparing bids. Siding removal exposes wall sheathing, which is the only practical time to add continuous rigid foam insulation without a full wall disassembly.
Siding replacement is a project where the visible cost, the per-square-foot rate on a quote, frequently understates the actual total. Old siding removal, sheathing repair if damage is found underneath, trim and soffit replacement, and proper window flashing are all separate line items that may or may not appear in an initial bid.
It's also one of the few home improvement projects that creates a secondary opportunity: exposing the wall sheathing allows continuous insulation to be added to the exterior of the framing, something that's essentially impossible to do without removing the siding at some point.
Vinyl: $4–$8/SF installed, 20–30 year lifespan. Fiber-cement: $8–$14/SF, 30–50 years, fire- and rot-resistant. Wood: $9–$16/SF, 25–40 years with regular painting. Old siding removal ($1,000–$3,000), sheathing repair (variable), and trim replacement are often not included in headline per-SF rates. Confirm what's in any bid before comparing across contractors.
Cost ranges from Meazora 2026 installer data. Lifespan estimates per VSI and James Hardie installation guidelines.
| Siding Material | Installed Cost / SF | Service Life | Maintenance |
|---|---|---|---|
| Vinyl | $4.00-$8.00 | 20-30 Years | Occasional washing only |
| Fiber-Cement (James Hardie, etc.) | $8.00-$14.00 | 30-50 Years | Paint every 8-15 years |
| Natural Wood (Cedar/Redwood) | $9.00-$16.00 | 25-40 Years | Paint/stain every 4-5 years |
Cost ranges from Meazora 2026 installer data. Service life estimates per VSI and James Hardie installation guidelines.
Fiber-cement's 30–50 year lifespan and paint retention advantage become meaningful when compared to vinyl's 20–30 year ceiling. Vinyl cannot be repainted when it fades, replacement is the only option. Fiber-cement holds paint for 8–15 years per James Hardie's published specifications, and when it does need repainting, the substrate remains sound. Over a 40-year ownership period, a fiber-cement exterior typically requires one paint cycle (you can review cost details in our exterior house painting cost guide); vinyl may require two full replacements.
Siding choice varies significantly by region due to climate constraints and regional building trends. In the Gulf Coast, storm resistance dictates materials, whereas the Northeast values low upfront costs. See the regional distribution map below.
Standard stud-cavity insulation (fiberglass batts or blown-in) fills the spaces between studs. The studs themselves remain as thermal bridges, wood conducts heat at roughly 1 BTU/hr·ft·°F, compared to less than 0.025 for rigid foam. In a typical 2x4 stud wall, studs account for roughly 25% of the wall area and bypass a significant portion of the cavity insulation's value.
Adding a continuous layer of rigid foam board (XPS, EPS, or mineral wool) over the exterior sheathing before new siding goes up eliminates this bridging path. A 1/2-inch layer of XPS provides approximately R-3 of additional insulation with no thermal bridging. A 1-inch layer provides approximately R-5.
The practical constraint: continuous insulation requires extending window and door jambs to account for the added wall thickness, and requires longer fasteners for the siding. Both add some labor cost. For most siding replacement projects, the incremental material and labor cost of adding rigid foam board runs $1.50–$4/SF depending on thickness and product.
Managing moisture infiltration depends entirely on your geography. In cold northern climates, the vapor barrier must stay on the interior side (behind the drywall) to keep interior humidity out of the framing. In hot, humid climates, the vapor barrier belongs on the exterior (behind the siding). Refer to the climate physics diagram below.
These costs are often not included in headline per-SF quotes. Ask specifically whether each is covered before comparing bids:
An initial low quote for natural wood or vinyl can be misleading. Over a 30-year lifecycle, maintenance cycles (painting, sealing, or premature material failure/replacement) can double the total investment. Review the comparative lifecycle analysis below.
The point at which old siding is off but new siding hasn't gone up yet is the only time sheathing condition is fully visible. Before new siding installation begins, the exposed sheathing should be inspected for:
Any issues found at this stage are best addressed before new siding goes up. Covering damaged sheathing with new siding doesn't stop the underlying moisture problem: it hides it until the damage reaches the interior.
Siding replacement consistently ranks as one of the highest yielding home improvement investments, returning more value at resale than major interior remodels. Review our comparative ROI chart below to see how siding replacement stack up against other upgrades.
To estimate total project cost for your home's square footage and material choice, use our siding replacement cost calculator.
To maintain absolute calculation integrity and trust, the structural lifespans, standard sizes, and pricing models in this guide are gathered from governing construction authorities and verified trade standards.
Mauricio L. is a software developer who loves working with his hands. He built Meazora because he was tired of online calculators that exist just to capture your email and phone number. Every calculator here runs completely in your browser to keep your planning private, fast, and simple.
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